The door into this train car is locked, and there's no other way in. The next train car is when things will start to get more difficult for you, though not immediately. When you reach the train car with the Army Jeeps on it, you know you're headed in the proper direction. Then, drop down into the train car and exterminate any stragglers before proceeding onward. You can snipe at enemy's limbs from here, slowly but surely thinning their ranks. Instead, try to finagle the camera so that you can see into the train car's main entrance. We recommend against this, however, because there are more enemies in here than you can possibly deal with. This ceiling gives you a chance to storm into the train car, surprising your foes. You'll eventually reach a train car with a glass ceiling. If you don't want to deal with them directly, attempt to get them to turn their backs, which will make them sitting ducks for the metal beams sticking out intermittently from both sides of the tunnel. Enemies you encounter as you move forward will oft come to the roof of the train. Launch yourself inside and walk to the far end of the train car's exterior (towards the way the train is going) to claim your treasure.ДЄfter grabbing the first treasure, work your way back to the rooftop of the train car and move forward to the next, keeping your gun at the ready. You'll see an entrance into the train car from there. Work your way to the side of the car and drop down.

The train car next to the train car holding a haul of coal is the key. After sniping the aforementioned enemies, begin to run forward. In other words, you don't have to ever enter this train car, meaning you're going to have to keep an eye out for this treasure's location, or pass by it all together. This treasure is found within a train car that you are walking over. TREASURE FORTY-SEVEN | Gilded Bodhisattva Statue (1/2 & 47/101)

Uncharted 2 among thieves walkthrough